# Return on Average Assets – Ordered Trend Analysis

> Return on Average Assets – Ordered Trend Analysis is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Fits a least-squares linear trend line to a series of up to 200 equally-spaced return-on-average-assets observations and returns the formula, slope, intercept, units, and analytical limitations.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-finance-return-assets-trend?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/return-on-average-assets-ordered-trend-analysis-ac3fec8c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pGKHHWNbGPUsYvAgGtxqM

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability return-on-average-assets-ordered-trend-analysis-ac3fec8c -d '<json body>'
```

Example prompt: Fit a linear trend line to these 6 quarterly return-on-average-assets data points — net incomes of 3000, 3300, 3100, 3500, 3400, 3700 and average assets of 40000, 44000, 42000, 46000, 45000, 48000 — and give me the trend formula, slope, and any limitations I should know about.

## When to prefer this

Choose this endpoint when you need a simple descriptive linear trend fitted specifically to return-on-average-assets (ROAA) time-series data without forecasting. It is ideal for summarizing directional movement in profitability efficiency across equally-spaced reporting periods (quarters, years) and producing a human-readable formula for reports or board presentations. Prefer alternatives if you need forecasting, non-linear models, sensitivity tables, or a different financial metric.

## Known failure modes

- Fewer than 2 observation rows supplied — minimum is 2
- average_assets value of zero or negative — exclusiveMinimum constraint violated
- More than 200 rows provided — maxItems constraint violated
- net_income or average_assets values outside ±1,000,000,000,000 bounds
- Malformed JSON body returns validation error

## How this service works

Return on average assets - Ordered trend analysis: Fit a descriptive straight-line trend to up to 200 equally spaced supplied observations; no forecast. Metric: Return on average assets. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded ordered trend analysis report.

## Output

A JSON object containing the fitted linear trend formula (y = mx + b), the slope and intercept values, the units of measurement, a description of the trend direction, and analytical limitations (e.g. that the model is descriptive only with no forecast or live data).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "net_income",
     "average_assets"
    ],
    "properties": {
     "net_income": {
      "type": "number",
      "default": 3000,
      "maximum": 1000000000000,
      "minimum": -1000000000000,
      "description": "Amount in a consistent supplied currency and reporting period"
     },
     "average_assets": {
      "type": "number",
      "default": 40000,
      "maximum": 1000000000000,
      "minimum": 0,
      "description": "Amount in a consistent supplied currency and reporting period",
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "net_income": 3000,
     "average_assets": 40000
    },
    {
     "net_income": 3300.0000000000005,
     "average_assets": 44000
    },
    {
     "net_income": 3000,
     "average_assets": 40000
    },
    {
     "net_income": 3300.0000000000005,
     "average_assets": 44000
    }
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/return-on-average-assets-ordered-trend-analysis-ac3fec8c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)